package com.bdqn.gulimall.auth.controller;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;
import com.bdqn.common.constant.AuthServerConstant;
import com.bdqn.common.exception.BizCodeEnum;
import com.bdqn.common.utils.R;
import com.bdqn.common.vo.MemberRespVo;
import com.bdqn.gulimall.auth.feign.MemberFeignService;
import com.bdqn.gulimall.auth.feign.ThirdPartFeignService;
import com.bdqn.gulimall.auth.vo.UserLoginVo;
import com.bdqn.gulimall.auth.vo.UserRegisterVo;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
import org.springframework.validation.FieldError;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.annotation.Resource;
import javax.servlet.http.HttpSession;
import javax.validation.Valid;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;

@Controller
public class LoginController {

    @Resource
    private ThirdPartFeignService thirdPartFeignService;

    @Autowired
    private StringRedisTemplate redisTemplate;

    @Resource
    private MemberFeignService memberFeignService;

    @GetMapping(value = "/login.html")
    public String loginPage(HttpSession session) {
        Object attribute = session.getAttribute(AuthServerConstant.LOGIN_USER);
        if( attribute == null){
            return "login";
        }else{
            return "redirect:http://yunmall.com";
        }
    }

    /**
     * 发送短信
     * @param phone
     * @return
     */
    @ResponseBody
    @GetMapping("/sms/sendCode")
    public R sendCode(@RequestParam("phone") String phone) {
        // TODO:1.接口防刷
        String redisCode = redisTemplate.opsForValue().get(AuthServerConstant.SMS_CODE_CACHE_PREFIX + phone);

        if(!StringUtils.isEmpty(redisCode)){
            long l = Long.parseLong(redisCode.split("_")[1]);
            if(System.currentTimeMillis()-l<60000){
                //60秒内不能再发
                R.error(BizCodeEnum.SMS_CODE_EXCEPTION.getCode(),BizCodeEnum.SMS_CODE_EXCEPTION.getMsg());
            }
        }

        String code = UUID.randomUUID().toString().substring(0, 5);
        String substring =code+"_"+System.currentTimeMillis();



        //2.验证码再次校验，验证码存储在redis中

        //redis缓存验证码数据

        redisTemplate.opsForValue().set(AuthServerConstant.SMS_CODE_CACHE_PREFIX +phone,substring,10, TimeUnit.MINUTES);

        thirdPartFeignService.sendCode(phone, code);
        return R.ok();
    }

    /**
     * RedirectAttributes redirectAttributes 能够在重定向时，附带数据进行传输
     * 注册账号
     * @param vo
     * @param result
     * @param redirectAttributes
     * @return
     */
    @PostMapping("/register")
    public String regist(@Valid UserRegisterVo vo, BindingResult result, RedirectAttributes redirectAttributes){
        if (result.hasErrors()){

            Map<String, String> errors = result.getFieldErrors().stream().collect(Collectors.toMap(FieldError::getField,FieldError::getDefaultMessage));

//            model.addAttribute("errors",errors);
            redirectAttributes.addFlashAttribute("errors",errors);
            //数据校验出错 转发到注册页面
            return "redirect:http://auth.yunmall.com/reg.html";
        }


        //真正注册，调用远程服务
        //1.校验验证码
        String code = vo.getCode();

        String s = redisTemplate.opsForValue().get(AuthServerConstant.SMS_CODE_CACHE_PREFIX + vo.getPhone());
        if(!StringUtils.isEmpty(s)){
            if(code.equals(s.split("_")[0])){
                //验证通过后，删除验证码,使用令牌机制
                redisTemplate.delete(AuthServerConstant.SMS_CODE_CACHE_PREFIX + vo.getPhone());


                //验证码通过 //调用远程服务注册

                R registResult = memberFeignService.regist(vo);
                if(registResult.getCode()==0){
                    //注册成功

                    System.out.println("注册成功！！！！！！！！！！！！！");
                    return "redirect:http://auth.yunmall.com/login.html";
                }else{
                    //注册失败
                    Map<String, String> errors = new HashMap<>();
                    errors.put("msg",registResult.getData("msg",new TypeReference<String>(){}));
                    redirectAttributes.addFlashAttribute("errors",errors);
                    System.out.println("注册失败"+JSON.toJSONString(errors));
                    return "redirect:http://auth.yunmall.com/reg.html";
                }






            }else{
                Map<String, String> errors =new HashMap<>();
                errors.put("code","验证码错误");
                redirectAttributes.addFlashAttribute("errors",errors);
                //数据校验出错 转发到注册页面
                return "redirect:http://auth.yunmall.com/reg.html";
            }
        }else {
            Map<String, String> errors =new HashMap<>();
            errors.put("code","验证码错误");
            redirectAttributes.addFlashAttribute("errors",errors);
            //数据校验出错 转发到注册页面
            return "redirect:http://auth.yunmall.com/reg.html";
        }
    }


    @PostMapping("/login")
    public String login(UserLoginVo vo, RedirectAttributes redirectAttributes, HttpSession session){


        //远程登录
        R login = memberFeignService.login(vo);
        if(login.getCode()==0){
            //成功
            session.setAttribute(AuthServerConstant.LOGIN_USER,login.getData(new TypeReference<MemberRespVo>(){}));
            return "redirect:http://yunmall.com";
        }else {
            //失败
            Map<String,String> map = new HashMap<>();
            map.put("msg",login.getData("msg",new TypeReference<String>(){}));
            redirectAttributes.addFlashAttribute("errors",map);
            return "redirect:http://auth.yunmall.com/login.html";
        }
    }


}
